RESUMEN
In many instances, emotions do not simply happen to people by chance; Often, people actively seek out an emotion by engaging in practices that have culturally evolved to evoke that emotion. Such practices tend to be perpetuated and spread if people want to experience the emotion, like to recall it and tell others about it, want to give the emotion to others and experience it together, and/or regard the emotion as a sign of something wonderful. We illustrate this with a newly delineated emotion, kama muta. Many social practices around the world are structured to evoke kama muta. In those culturally evolved practices, and outside them, what typically evokes kama muta is a sudden intensification of communal sharing, or a sudden shift of attention to a communal sharing relationship. It seems probable that other social-relational emotions are also evoked by sudden changes in relationships or the sudden salience of a relationship. This change or saliencing may be incorporated in social practices that are perpetuated because they evoke the sought-after emotion. We suggest that such practices, as well as sudden changes in relationships that occur elsewhere, are especially promising places to discover social-relational emotions.